Hot pressing die for stretching cloth and bonding plastic part

Abstract

The utility model discloses a hot-pressing die for cloth stretching and bonding plastic parts, which comprises a top plate, an upper plate, an upper hot-pressing mechanism, a side hot-pressing mechanism, a bottom plate, a base, a lower plate, a lifting mechanism, an ejection mechanism and a spring, the upper hot-pressing mechanism and the side hot-pressing mechanism are both connected with the top plate, one end of the spring is connected with the upper plate, and the other end of the spring is connected with the top plate. The base and the lifting mechanism are both installed on the bottom plate, the ejection mechanism is embedded in the base, the lifting mechanism is connected with the lower plate, the base is provided with an objective table, the upper plate is provided with a first through hole, the lower plate is provided with a second through hole, and the ejection plate can move relative to the bottom plate. The objective table can penetrate through the first through hole and the second through hole to be opposite to the upper hot-pressing mechanism, and the side hot-pressing mechanism is located on the periphery of the side portion of the objective table. The cloth can be bonded on the top surface and the side surface of the plastic part at the same time, the processing efficiency is high, and the market competitiveness is strong.

Description

Technical Field

[0001] The utility model relates to the field of mold design, in particular to a hot pressing mold for stretching and bonding plastic parts of cloth. Background Art

[0002] Hot pressing is a common processing method that applies heat and pressure to a product to change its shape or bond multiple parts together. Hot pressing requires the use of a hot press mold. Some plastic parts on the market now require fabric bonding to achieve greater softness and a better feel, a process often achieved through hot pressing.

[0003] However, in actual production and processing, relying on common hot pressing molds is often only suitable for bonding fabric to the top surface of plastic parts. If the fabric needs to be bonded to the side of the plastic part, an additional hot pressing process is often required, which has low processing efficiency and weak market competitiveness. Utility Model Content

[0004] The purpose of the utility model is to provide a hot pressing die for stretching and bonding plastic parts of cloth, which can solve one or more of the above problems.

[0005] According to one aspect of the present invention, a hot pressing mold for stretching and bonding plastic parts of fabric is provided, comprising a top plate, an upper plate, an upper hot pressing mechanism, a side hot pressing mechanism, a bottom plate, a base, a lower plate, a lifting mechanism, an ejection mechanism and a spring.

[0006] The upper hot pressing mechanism and the side hot pressing mechanism are both connected to the top plate, one end of the spring is connected to the upper plate, and the other end is connected to the top plate.

[0007] The base and the lifting mechanism are both mounted on the bottom plate, the ejection mechanism is embedded in the base, and the lifting mechanism is connected to the lower plate.

[0008] The base is provided with a loading platform, the upper plate is provided with a first through hole, the lower plate is provided with a second through hole, and the top plate can move relative to the bottom plate so that the loading platform can pass through the first through hole and the second through hole and face the upper hot pressing mechanism, and the side hot pressing mechanism is located on the outer periphery of the side of the loading platform.

[0009] The beneficial effects of the present invention are as follows: in the present invention, the loading platform on the base can be used to support the plastic part, and the fabric to be bonded can be placed on the plastic part, and can be moved by pressing the fabric with the upper plate and the lower plate, so that the fabric can be effectively stretched to reach the side of the plastic part, and because a spring is provided, even if the thickness of the fabric changes during the stretching process, the elastic force of the spring can still keep the upper plate and the lower plate in full contact with the fabric to ensure that the fabric can be effectively stretched, and after being stretched to the right position, the side hot pressing mechanism and the hot pressing mechanism can make the fabric fully fit on the end face and side face of the plastic part, and can simultaneously heat press the fabric and the plastic part to effectively connect them, and an ejection mechanism is also provided to facilitate the removal of the bonded finished product. Thus, the present invention can simultaneously achieve the stretching of the fabric and the bonding with the plastic part, without the need for repeated positioning, and can ensure the effective connection of the fabric to the top and side face of the plastic part during processing, thereby improving processing efficiency, high product quality, and strong market competitiveness.

[0010] In some embodiments, the upper hot pressing mechanism includes a heat-insulating plate, a heating plate, an upper pressing plate, and a first heater. The top plate, heat-insulating plate, heating plate, and upper pressing plate are sequentially connected from top to bottom, and the first heater is embedded in the heating plate. The upper pressing plate can move with the top plate, and the first heater can provide a sufficient temperature to facilitate hot pressing of the upper pressing plate.

[0011] In some embodiments, the side hot pressing mechanism includes a side pressure block, a cylinder, a slide rail, a slider, and a second heater. The cylinder and slide rail are both connected to the top plate, the slider is slidably connected to the slide rail, the cylinder is connected to the side pressure block, the side pressure block is connected to the slider, and the second heater is embedded in the side pressure block. The cylinder can drive the side pressure block to move closer to or away from the side of the loading platform, and the second heater can provide sufficient temperature to facilitate hot pressing of the side pressure block. In addition, the provision of the slide rail and slider can conveniently guide the movement of the side pressure block, ensuring the reliability of the movement of the side pressure block.

[0012] In some embodiments, the lifting mechanism includes a lifting cylinder and connecting screws, wherein the lifting cylinder is connected to the bottom plate, and the lifting cylinder is connected to the lower plate via the connecting screws, thereby the lifting cylinder can drive the lower plate to move up and down.

[0013] In some embodiments, the ejection mechanism includes an ejection cylinder, an ejection block, and a base. The base is connected to the bottom plate and embedded in the base. The ejection cylinder is connected to the base and to the ejection block. The ejection cylinder can drive the ejection block to move to achieve the ejection action.

[0014] In some embodiments, the top block is provided with a protrusion, the base is provided with a receiving cavity, and the sidewalls of the receiving cavity are provided with a groove. The top block is movably disposed within the receiving cavity, with the protrusion extending into the groove. The receiving cavity can limit the movement of the top block, reducing displacement of the top block, while the use of the protrusion and groove can prevent the top block from rotating during movement.

[0015] In some embodiments, the present invention further comprises a connecting post and a guide block, wherein the connecting post is connected to the bottom plate, the guide block is mounted on the top plate, and the guide block is movably mounted on the connecting post. The arrangement of the connecting post and the guide block can guide the movement of the top plate during movement, thereby ensuring the accuracy of the top plate's movement.

[0016] In some embodiments, the present invention further includes an upper limit block and a lower limit block, wherein the upper limit block is connected to the top plate, and the lower limit block is connected to the bottom plate, and the upper and lower limit blocks are arranged relative to each other. The upper and lower limit blocks can serve as the limit positions for relative movement between the top and bottom plates, preventing damage to other components caused by excessive movement of the top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a hot pressing die for stretching and bonding plastic parts of cloth according to an embodiment of the present invention.

[0018] Figure 2 This is a front view of a schematic structural diagram of a hot pressing die for stretching and bonding plastic parts of cloth according to an embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional view of a schematic structural diagram of a hot pressing die for stretching and bonding plastic parts of cloth according to one embodiment of the present invention.

[0020] Figure 4 This is a schematic structural diagram of a hot pressing mold for stretching and bonding plastic parts of cloth according to an embodiment of the present invention during hot pressing.

[0021] Figure 5 This is a cross-sectional view of a schematic structural diagram of a hot pressing mold for stretching and bonding plastic parts of cloth according to an embodiment of the present invention during hot pressing.

[0022] In the figure: 1. top plate, 2. upper plate, 3. upper hot pressing mechanism, 4. side hot pressing mechanism, 5. bottom plate, 6. base, 7. lower plate, 8. lifting mechanism, 9. ejection mechanism, 10. spring, 20. connecting column, 30. sleeve block, 40. upper limit block, 50. lower limit block, 21. first through hole, 71. second through hole, 31. thermal insulation board, 32. heating plate, 33. upper pressure plate, 34. first heater, 41. side pressure block, 42. cylinder, 43. slide rail, 44. slider, 45. second heater, 60. loading platform, 61. accommodating cavity, 62. groove, 81. lifting cylinder, 82. connecting screw, 91. ejection cylinder, 92. top block, 93. base, 921. bump. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The utility model is a hot pressing mold for stretching and bonding plastic parts of cloth, comprising a top plate 1, an upper plate 2, an upper hot pressing mechanism 3, a side hot pressing mechanism 4, a bottom plate 5, a base 6, a lower plate 7, a lifting mechanism 8, an ejection mechanism 9 and a spring 10.

[0025] The upper hot pressing mechanism 3 includes a heat insulation plate 31, a heating plate 32, an upper pressing plate 33, and a first heater 34. There can be multiple heat insulation plates 31. In this embodiment, there are preferably two heat insulation plates 31, which are stacked and fixedly connected. The top plate 1, the heat insulation plate 31, the heating plate 32, and the upper pressing plate 33 are fixedly connected in sequence from top to bottom by bolts, that is, the upper hot pressing mechanism 3 is fixedly connected to the bottom of the top plate 1. There can be multiple first heaters 34, which are preferably electric heaters. All first heaters 34 are fixedly embedded in the heating plate 32.

[0026] There can be multiple side hot pressing mechanisms 4. In each side hot pressing mechanism 4, the side hot pressing mechanism 4 includes a side pressure block 41, a cylinder 42, a slide rail 43, a slider 44 and a second heater 45, and the cylinder bodies of the cylinders 42 of all side hot pressing mechanisms 4 are fixedly connected to the bottom of the top plate 1 through a connecting block, and the piston rod of the cylinder 42 is fixedly connected to the side pressure block 41 by bolts, so that the cylinder 42 can drive the side pressure block 41 to move, and the side pressure block 41 and the slider 44 are fixedly connected by bolts, and the slide rails 43 of all side hot pressing mechanisms 4 are also fixedly connected to the bottom of the top 1 through a connecting block, and the slider 44 can be slidably mounted on the slide rail 43. The second heater 45 can also be preferably an electric heater, and the second heater 45 is fixedly embedded in the side pressure block 41. Then the side hot pressing mechanism 4 is also fixedly connected to the bottom of the top plate 1, and all side hot pressing mechanisms 4 after setting are located at the periphery of the upper hot pressing mechanism 3.

[0027] The spring 10 can preferably be multiple, one end of all the springs 10 is connected to the upper plate 2 by a bolt, and the other end of all the springs 10 is connected to the top plate 1 by a bolt. The top plate 1 is located below the side hot pressing mechanism 4 and the upper hot pressing mechanism 3 after being set, and in order to reduce the erroneous movement of the spring 10, a plurality of core columns are also connected to the top plate 1, and the multiple springs 10 are correspondingly mounted on the multiple core columns.

[0028] The base 6 is fixedly mounted on the bottom plate 5 by bolts, and a loading platform 60 is provided on the base 6. The shape of the loading platform 60 can match the shape of the plastic parts to be processed, so that the above-mentioned plastic parts can be fixedly placed on the loading platform 60 during processing.

[0029] The lifting mechanism 8 includes a lifting cylinder 81 and connecting screws 82. Preferably, there are two lifting cylinders 81. The cylinder bodies of both lifting cylinders 81 are fixedly connected to the base plate 5 via bolts. The piston rods of the lifting cylinders 81 are connected to the lower plate 7 via connecting screws 82, enabling the lifting cylinders 81 to move the lower plate 7 upward and downward. Furthermore, the lifting mechanism 8 includes a lower guide post and a guide sleeve. The lower guide post is fixedly connected to the base plate 5. The guide sleeve is embedded in the lower plate 7 and slidably fits over the lower guide post to guide the movement of the lower plate 7.

[0030] The ejection mechanism 9 includes an ejection cylinder 91, an ejection block 92, and a base 93. The base 93 is fixedly connected to the bottom plate 5 by bolts and is fixedly embedded in the base 6. The base 6 also has a cavity. The cylinder body of the ejection cylinder 91 is fixedly connected to the base 93 by bolts, and the piston rod of the ejection cylinder body 91 is fixedly connected to the ejection block 92 by bolts. The ejection cylinder body 91 is located in the cavity, and the piston rod of the ejection cylinder body 91 can move in the cavity.

[0031] A protrusion 921 is provided on the side of the top block 92, and a receiving cavity 61 is also provided in the base 6. The receiving cavity 61 is communicated with the cavity, and one end opening of the receiving cavity 61 is provided on the top surface of the workbench 60. A groove 62 is provided on the side wall of the receiving cavity 61. The top block 92 is provided in the receiving cavity 61 so as to be movable up and down. The protrusion 921 extends into the groove 62 and can move up and down in the groove 62.

[0032] The hot pressing mold for stretching and bonding plastic parts of the present invention further includes connecting columns 20 and sleeve blocks 30. There are multiple connecting columns 20, and one end of all the connecting columns 20 is fixedly connected to the bottom plate 5 by bolts. There are also multiple sleeve blocks 30, and all the sleeve blocks 30 are fixedly embedded in the top plate 1. The multiple sleeve blocks 30 can be slidably mounted on the multiple connecting columns 20 in a one-to-one corresponding manner, so that the top plate 1 can move relative to the bottom plate 5.

[0033] A first through hole 21 is provided at the center of the upper plate 2, and a second through hole 71 is provided at the center of the lower plate 7. As the top plate 1 can move relative to the bottom plate 5, the loading platform 60 can pass through the first through hole 21 and the second through hole 71 and face the upper pressing plate 33 of the upper hot pressing mechanism 3, and at this time, the side pressing block 41 of the side hot pressing mechanism 4 can be located on the side periphery of the loading platform 60.

[0034] The hot press mold for stretch-bonding plastic parts also includes an upper limit block 40 and a lower limit block 50. The upper limit block 40 is fixedly connected to the top plate 1 by bolts, and the lower limit block 50 is fixedly connected to the bottom plate 5 by bolts. After being set, the upper limit block 40 and the lower limit block 50 are arranged relative to each other, which can serve as the limit positions for the relative movement of the top plate 1 and the bottom plate 5. When they move to the limit positions, the upper limit block 40 and the lower limit block 50 can abut each other.

[0035] When the hot pressing mold for stretching and bonding plastic parts of fabrics is in use, the top plate 1 can be connected to an external power device such as a cylinder, and the power device can drive the top plate 1 to move relative to the bottom plate 5 up and down.

[0036] First, the top plate 1 is moved away from the bottom plate 5, and the upper plate 2 is moved away from the loading platform 60. At the same time, the lifting cylinder 81 of the lifting mechanism 8 can drive the lower plate 7 to move downward, so that most of the loading platform 60 is effectively exposed. At this time, the plastic part to be processed can be placed on the loading platform 60 for fixation, and then the lifting cylinder 81 is driven to move the lower plate 7 upward so that the top surface of the lower plate 7 is flush with the top surface of the plastic part. Then, the cloth can be placed on the top surface of the plastic part, and a part of the cloth can be placed on the top surface of the lower plate 7.

[0037] The power device connected to the top plate 1 drives the top plate 1 to move downward, and the upper hot pressing mechanism 3, the upper side pressing mechanism 4 and the upper plate 2 connected to the top plate 1 can all move downward accordingly. Since the upper plate 2 is in a low position, the upper plate 2 can first contact with the cloth, and thus clamp the cloth together with the lower plate 7.

[0038] As the top plate 1 then moves downward, the upper plate 2 continues to move downward, while the lifting cylinder 81 also drives the lower plate 7 downward. As the upper and lower plates 2 and 7 move downward, the platform 60 can pass through the first and second through-holes 21 and 71 until the fabric on the platform 60 contacts and is pressed against the upper pressing plate 33. Since the upper and lower plates 2 and 7 maintain their grip on the fabric, the fabric is stretched, fully adheres to the top surface of the plastic part, and a portion of the fabric effectively lies on the side of the platform 60, i.e., outside the side of the plastic part. Furthermore, even if the fabric thickness changes during the stretching process, the elastic action of the spring 10 can still effectively ensure full contact between the upper plate 2 and the fabric, thereby ensuring the reliability of the grip between the upper and lower plates 2 and 7.

[0039] Then, by activating each cylinder 42, the cylinders 42 in each side heat-pressing mechanism 4 drive the side pressing blocks 41 toward the side of the loading platform 60, thereby pressing the fabric against the side of the plastic part. At this point, the first heater 34 and the second heater 45 can be activated to heat-press the fabric and the plastic part, ensuring that the fabric is fully bonded to the top and side surfaces of the plastic part.

[0040] After the bonding is completed, each cylinder 42 is actuated to move the side pressure block 41 in a direction away from the side of the loading platform 60, that is, the side pressure block 41 is no longer pressed on the fabric. Then the external power device drives the top plate 1 to move upward, so that the upper plate 2 and the lower plate 7 are separated, that is, the upper plate 2 and the lower plate 7 are no longer pressed on the fabric.

[0041] Then, the ejection cylinder 91 is activated to drive the ejection block 92 to move upward to eject the hot-pressed finished product on the stage 60, thereby obtaining a finished product in which the fabric is effectively bonded to the top and side surfaces of the plastic part.

[0042] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A hot pressing die for stretching and bonding plastic parts, characterized in that: It includes top plate, upper plate, upper hot pressing mechanism, side hot pressing mechanism, bottom plate, base, lower plate, lifting mechanism, ejection mechanism and spring. The upper hot pressing mechanism and the side hot pressing mechanism are both connected to the top plate, one end of the spring is connected to the upper plate, and the other end is connected to the top plate. The base and the lifting mechanism are both mounted on the bottom plate, the ejection mechanism is embedded in the base, and the lifting mechanism is connected to the lower plate. The base is provided with a loading platform, the upper plate is provided with a first through hole, the lower plate is provided with a second through hole, and the top plate can move relative to the bottom plate so that the loading platform can pass through the first through hole and the second through hole and face the upper hot pressing mechanism, and the side hot pressing mechanism is located on the outer periphery of the side of the loading platform.

2. A hot pressing mold for stretching and bonding plastic parts of cloth according to claim 1, characterized in that: The upper hot pressing mechanism includes a heat insulation plate, a heating plate, an upper pressing plate and a first heater. The top plate, heat insulation plate, heating plate and upper pressing plate are connected in sequence from top to bottom. The first heater is embedded in the heating plate.

3. The hot pressing mold for stretching and bonding plastic parts of fabric according to claim 1, characterized in that: The side hot pressing mechanism includes a side pressure block, a cylinder, a slide rail, a slider and a second heater. The cylinder and the slide rail are both connected to the top plate. The slider is slidably connected to the slide rail. The cylinder is connected to the side pressure block. The side pressure block is connected to the slider. The second heater is embedded in the side pressure block.

4. The hot pressing mold for stretching and bonding plastic parts of cloth according to claim 1, characterized in that: The lifting mechanism includes a lifting cylinder and connecting screws. The lifting cylinder is connected to the bottom plate, and the lifting cylinder is connected to the lower plate through the connecting screws.

5. The hot pressing mold for stretching and bonding plastic parts of cloth according to claim 1, characterized in that: The ejection mechanism includes an ejection cylinder, an ejection block and a base. The base is connected to the bottom plate and embedded in the base. The ejection cylinder is connected to the base and to the ejection block.

6. A hot pressing die for stretching and bonding plastic parts with cloth according to claim 5, characterized in that: The top block is provided with a protrusion, the base is provided with a receiving cavity, the side wall of the receiving cavity is provided with a groove, the top block is movably arranged in the receiving cavity, and the protrusion extends into the groove.

7. The hot pressing mold for stretching and bonding plastic parts of fabric according to claim 1, characterized in that: The utility model comprises a connecting column and a sleeve block, wherein the connecting column is connected to the bottom plate, the sleeve block is installed on the top plate, and the sleeve block can be movably sleeved on the connecting column.

8. A hot pressing die for stretching and bonding plastic parts with cloth according to claim 7, characterized in that: The utility model comprises an upper limit block and a lower limit block, wherein the upper limit block is connected to the top plate, the lower limit block is connected to the bottom plate, and the upper limit block and the lower limit block are arranged relative to each other.

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